diff options
Diffstat (limited to 'openvpn/src/openvpn/jniglue.c')
| -rw-r--r-- | openvpn/src/openvpn/jniglue.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/openvpn/src/openvpn/jniglue.c b/openvpn/src/openvpn/jniglue.c new file mode 100644 index 00000000..2d529365 --- /dev/null +++ b/openvpn/src/openvpn/jniglue.c @@ -0,0 +1,162 @@ +#include <jni.h> +#include <android/log.h> +#include <stdlib.h> +#include <setjmp.h> + +#include "jniglue.h" + +JNIEXPORT jint Java_de_blinkt_OpenVPN_startOpenVPNThread(JNIEnv* env, jclass jc); + + +extern int main (int argc, char *argv[]); + +static jmp_buf jump_buffer; + +int callmain (int argc, char *argv[]) { + if(!setjmp(jump_buffer)) + main(argc,argv); +} + + +void android_openvpn_exit(int status) { + longjmp(jump_buffer,status+1); +} + + +void testmsg(char* m1, ...) { + va_list arglist; + va_start(arglist,m1); + // vsnprintf(m1, 100, "foo bbaz",arglist); + __android_log_vprint(ANDROID_LOG_DEBUG, "openvpn",m1, arglist); + va_end(arglist); +} + +// Store env and class, we allow only one instance +// so make these variables global for now +jclass openvpnclass; +JNIEnv* openvpnjenv; + +//Lde/blinkt/openvpn/OpenVPN startOpenVPNThread startOpenVPNThread + jint Java_de_blinkt_openvpn_OpenVPN_startOpenVPNThread(JNIEnv* env, jclass jc){ + char* argv[] = {"openvpn", "--client", + "--dev","tun", + "--comp-lzo", +// "--redirect-gateway","def1", +// "--pkcs12","/mnt/sdcard/Network_Certificate.p12", + "--remote-cert-eku", "TLS Web Server Authentication", + "--remote","openvpn.uni-paderborn.de", + "--ca","/mnt/sdcard/ca.pem", + "--key","/mnt/sdcard/schwabe.key", + "--cert","/mnt/sdcard/schwabe.pem", + "--verb","4" + }; + + openvpnclass = jc; + openvpnjenv= env; + int argc=17; + + return callmain(argc,argv); + } + +void Java_de_blinkt_openvpn_OpenVPN_startOpenVPNThreadArgs(JNIEnv *env,jclass jc, jobjectArray stringArray) { + openvpnclass = jc; + openvpnjenv= env; + + int stringCount = (*env)->GetArrayLength(env, stringArray); + + + const char** argv = calloc(stringCount,sizeof(const char*)); + + int i; + for (i=0; i<stringCount; i++) { + jstring string = (jstring) (*env)->GetObjectArrayElement(env, stringArray, i); + jboolean isCopy; + const char* rawString = (*env)->GetStringUTFChars(env, string, &isCopy); + + // Copy the string to able to release it + argv[i] = rawString; + + } + + // Call main + callmain(stringCount,argv); + + // Release the Strings + for(i=0; i<stringCount;i++){ + jstring string = (jstring) (*env)->GetObjectArrayElement(env, stringArray, i); + (*env)->ReleaseStringUTFChars(env,string,argv[i]); + } + free(argv); +} + + + + +jint JNI_OnLoad(JavaVM *vm, void *reserved) { + __android_log_write(ANDROID_LOG_DEBUG,"openvpn", "Loading openvpn native library $id$ compiled on " __DATE__ " " __TIME__ ); + return JNI_VERSION_1_2; +} + +void addInterfaceInformation(int mtu,const char* ifconfig_local, const char* ifconfig_remote) +{ + jstring jlocal = (*openvpnjenv)->NewStringUTF(openvpnjenv, ifconfig_local); + jstring jremote = (*openvpnjenv)->NewStringUTF(openvpnjenv, ifconfig_remote); + + jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "addInterfaceInfo", + "(ILjava/lang/String;Ljava/lang/String;)V"); + (*openvpnjenv)->CallStaticVoidMethod(openvpnjenv,openvpnclass,aMethodID,mtu,jlocal,jremote); + + (*openvpnjenv)->DeleteLocalRef(openvpnjenv,jlocal); + (*openvpnjenv)->DeleteLocalRef(openvpnjenv,jremote); + + +} + +void android_openvpn_log(int level,const char* prefix,const char* prefix_sep,const char* m1) +{ + __android_log_print(ANDROID_LOG_DEBUG,"openvpn","%s%s%s",prefix,prefix_sep,m1); + + jstring jprefix = (*openvpnjenv)->NewStringUTF(openvpnjenv, prefix); + jstring jmessage = (*openvpnjenv)->NewStringUTF(openvpnjenv, m1); + + jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "logMessage", + "(ILjava/lang/String;Ljava/lang/String;)V"); + + (*openvpnjenv)->CallStaticVoidMethod(openvpnjenv,openvpnclass,aMethodID,level,jprefix,jmessage); + + (*openvpnjenv)->DeleteLocalRef(openvpnjenv,jprefix); + (*openvpnjenv)->DeleteLocalRef(openvpnjenv,jmessage); + +} + + +unsigned char android_protect_socket(int sockfd) { + jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "protectSocket", + "(I)Z"); + return (*openvpnjenv)->CallStaticBooleanMethod(openvpnjenv,openvpnclass,aMethodID,sockfd); + +} +int android_open_tun () { + jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "openTunDevice", + "()I"); + return (*openvpnjenv)->CallStaticIntMethod(openvpnjenv,openvpnclass,aMethodID); + +} + +void addRouteInformation(const char* dest, const char* mask, const char* gw) { + + jstring jmask = (*openvpnjenv)->NewStringUTF(openvpnjenv, mask); + jstring jdest = (*openvpnjenv)->NewStringUTF(openvpnjenv, dest); + jstring jgw = (*openvpnjenv)->NewStringUTF(openvpnjenv, gw); + jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "addRoute", + "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); + (*openvpnjenv)->CallStaticVoidMethod(openvpnjenv,openvpnclass,aMethodID,jdest,jmask,jgw); + + (*openvpnjenv)->DeleteLocalRef(openvpnjenv,jmask); + (*openvpnjenv)->DeleteLocalRef(openvpnjenv,jdest); + (*openvpnjenv)->DeleteLocalRef(openvpnjenv,jgw); + + +} + + |